IV01847: TOO MUCH CPU TIME CONSUMED DURING ZWAS STARTUP

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APAR status

Closed as program error.

Error description

Error Message: N/A
.
Stack Trace: N/A
.

Local fix

There are several JVM options that can reduce consumed CPU time
but the most used one is -Xquickstart. Note however that the
usage of these workarounds are likely to affect throughput.

Problem summary

The problem (5-15% more CPU than Java6) is caused by more
aggressive JIT warm compilations which are needed for higher
throughput.

Problem conclusion

This defect will be fixed in:
6.0.1 GA FP1
.
The JIT has been updated to reduce the aggressiveness of certain
warm compilations during STARTUP only.
.
To obtain the fix:
Install build 20110309 or later